const mongoose = require('mongoose')

mongoose.connect('mongodb://127.0.0.1:27017/-')  //添加库名

const conn = mongoose.connection
conn.on('open', () =>{
   console.log('数据库连接成功,请访问：http://localhost:3003');
})
conn.on('error', () =>{
   console.log('数据库连接失败');
})

module.exports = mongoose
